Machine for sewing leather articles.



P. WAJDIC.

MACHINE FOR SEWING LEATHER ARTICLES.

APPLICATION HLED JULY 31. I914.

Patented Mar. 20, 1917.

PETAB AJDI, or s'rnnn'ron, PENNSYLVANIA.

MJACHINE FOE SEWING LEATHER ARTICLES.

. To all whom it may concern:

lie it known that l. Pn'ma VAJDIC,

" a subjectot' the King; of Hungary, residing .at h'teelton, in thecounty of Dauphin and provide jis simple hereinafter set forth,

State of Pennsylvania. have invented certain new and useful Improvementsin Machines for Sewing Leather Articles, of which the following is aspecification, refer- ..ence being bad therein to the accompanyingdrawing.

This invention relates to a machine tor sewing leather articles and hasfor its object. to provide a machine having a needle operating and workfeeding mechanism as capable of being opicratcd manually for sewingtogether a plu- 'ality of plies of leather.

Further objects of the inventionare to a mechanism. of such class whichin its construction and arrange- .Iment. strong. durable, ellicient' andconven- .ient in its use, readily set up and comparatively inexpensive tomanufacture,

With the. foregoing and other ObJGCtS in view theinvention consists of anovel construction, combination and arrangement o parts as hcremattermore specifically described and illustrated in the accompanyingdrawings, wherein is shown an embodiment of the invention. but it is tobe understood that changes, variations and modifications can be resortedto which come within the scopeot the claims hereunt appended.

r\lthougli the machine is designed primarily for the sewing or stitchingtogether of a plurality of plies of leather, yet it is to be understoodthat it can be employed for stitching or sewing togethe a plurality ofplies of any flexible material.

Figure 1 shows a side elevation of the machine ha ring a portion thereofbroken away as indicated in Fi 2 by lines (t o.

Fig. 2 is a top plan view of the machine, and Fig. 3 is a detailperspective view of the pivotal joint employed in the device.

Referring to the drawing in detail, 1 denotes the inner side of a bottommember. A similar member lies parallel with the member 1 and the membersterminate in an integral handle. 8. Near the front and rear oi members land 40 are braces 2 and 3 con net-ting them and formed integral withthem. Between the handle i and brace 2.

isa housing having side} walls Pl connecting the members 1 and -L0 and atop 0 Specification of Letters Patent.

Patented Mar. 20, 1917.

Application filed July 31, 1914. Serial No. 854.421.

made integral with the walls 4rl and members 1 and 32. The top 5 has ahole centrally located therein. The forward ends of members 1 and 40 areconnected by a. plate 7, being perforated to allow the needle tocoiiperatc with the usual stitch forming mechanism 42.

The arms 2 and 3 and one side of the member 4 provide'bearings for thelongitudinally extending shaft 8 thelatter having attached to itsforward end a toothed wheel 9 which projects above the plate 7 andconstitutes means for shifting material while being stitched. the teethof said wheel engaging beneath the goods to be operated upon whereby thegoods may be fed forwardly when released by the sewing needle and heldagainst the teeth by the operator but ratcheting: thereover during thereturn movement; of the wheel 5) when relea ed by the operator andunattecting the goods. The rear end of the shaft. 8 is provided with abeveled gear 10.

Secured to the top edge of the member 1, are a pair of uprights l0 and11, and pivotally connected to the upright 11, as at 12, is alongitudinally extending shank 13, of a verti ally disposed needleholder 1d, the latter having a needle attached thereto and furtherprovided with a thr ad guide 16, through which travels the thread 17, asit is unwound from the spool 18.

The shank 13 carries a post 19 for the spool 18 and the latter ismaintained upon the post 19, by a shit'tablc retaining arm 20, carriedby a post 21 secured to the shank l3, rearwardly with respect to thepost 19.

Pivotally connected to the top of the upright l0 as at is an operatii'iglever 22, the latter having its forward end reduced and received betweenthe sides of the forked rear end of the shank l3. thc'said sides beingslotted as at 4 5 and the said lever 22 and shank 1;, being pivotallyconnected as at .23, to the rear end of the shank, and its rearward endformed with a handle 24. The lever 22 has a. lateral extension 25.formed with an opening 26. having the wall thereof provided withprojections 27 and '28, which extend into a spiral groove formed in avertically disposed shaft 30. The shaft 30 extends up through the.openings 5 and 26 and has its lower end provided with a beveled pinion31 which meshes with the pinion 10.

Interposed between the lever 22 and member 1 is a spring 32 normallymaintaining the lever and member 1 in spaced relation and adapted toreturn the lever 22 and shank 13 to their normal positions in substantial alinement with each other after each actuation of the device.

The lever 22 is capable of being shifted upon its pivot 21, to cause therotation of the shaft 30, such action will operate the shaft 8 by meansof the shafts 30 and the gears 31 and' 10. When the lower end ofthelever 22 moves downward the rear end of the shank 13 will be carriedupward, causing the lowering of the needle holders, the stitching of thematerial, and the feeding of the thread. i

The spring 3:! -vill not only actuate the lever 22 to starting positionbut will also restore the needle holder to such position.

'hat I claim is 1. A device of the class described comprising a basehaving a handle at its rear end and a needle plate at its forward end,spaced uprights upon the said base, a shank pivoted to the forwardone'of said'uprights, a needle holder at the forward end of said shankadapted to operatively position a needle with iaspect to the said plate,a thread carrier upon the said shank, an operating lever pivoted to therearward upright having loose pivotal connection with the adjacent endofthe said shank and having a handle portion at its free end adjacentthe said base handle, resilient return positioning means for said leverand shank positioned between said lever and base, the said lever andshank being noimally in substan tial alinement with each other and inparallelism with the said base.

2. A device of the class described comprising a base having a handle atits rear end and a needle plate at its forward end, spaced uprights uponthe said base, a shank pivoted to the forward one of said uprights, aneedle holder at the forward end of said shank adapted to operativelyposition a needle with respect to the said plate, a thread carrier uponthe said shank. an operating lever pivoted to the rearward uprighthaving loose pivotal connection with the adjac nt end of the said shankamt having a handle portion at its free end adjacent the said basehamlle, resilient return positioning means for said lever and shankpositioned between said lever and base, the said lever and shank beingnormally in substantial alinement with each other and in parallelismwith the said base, laterally projectingarms and a housing carried bythe said base, a. shaft journaled through the said housing and arms, awork engaging feed wheel upon the forward end of said shaft projectingslightly above the receiving face of said plate, a pinion upon theopposite end of said shaft, a rotating member extending through saidhousing and lever and operatively connected to said pinion within thesaid housing, and rotation imparting connections between said rotatingmembep'..ml lever.

In testimony whereof I allix my signature in the presence of twowitnesses.

PETA W AJ DIC.

'itnesses:

Mun: Slnnnxa, Tnumto Suo'rml.

